baber/WOPTO huggingface dataset:
Patent GB-286673-A (GB)
Title: Process for the electrolytic extraction of tin from alkaline lyes
IPC: C25C1/14
Filed: 1928-03-07
Abstract: 286,673. Siemens & Halske Akt.- Ges. March 8, 1927, [Convention date]. Tin, obtaining.-Tin is deposited in coherent form from an alkaline solution which has been treated with an oxidizing agent until practically all the tin is present in the form of stannate. The oxidizing agent may be ozone, hydrogen, peroxide or an alkali or alkaline earth metal peroxide. About 1.5-10 gms. per litre of gelatine or other colloid is added.
Patent GB-145135-A (GB)
Title: Improvements in machines for slitting paper or other fibrous materials into strips and winding same
IPC: B65H35/02
Filed: 1919-03-22
Abstract: 145,135. Boyd, T. A., and Boyd, H. A. March 22, 1919. Winding-machines; driving-arrangements. - Means for winding strips of paper or like fibrous material, such as cloth or asbestos, singly or two or more ply as they are drawn from a machine wherein a web is slit into strips, comprises a table 1 provided with guide-pins 12, which deflect the strips from a line at right-angles to the axis of the cutters of the slitting-machines to traversing- guides 11, which distribute the strips on to bobbins driven by friction drums 6. The winding- bobbins are driven at a speed sufficiently greater than that at which the strips are delivered from the slitting-mechanism, to ensure firm winding. by means of a friction disk 14 on the drum shaft. The speed is reduced during winding by traversing a friction pulley 15 towards the periphery of the disk 14 by known means, such as screw-andratchet mechanism operated from the traverse bar. The winding-bobbins consist of engaging bosses 7<2>, 7<4>, respectively integral with flanges 7<1>, 7<3>. The strips are wound on a wooden core or sleeve 16. Specifications 8579/90, 23942/95, 10530/02, and 8417/10 are referred to. In one of the Provisional Specifications it is stated that in some cases the strips are twisted and wound upon bobbins.
Patent GB-470869-A (GB)
Title: Improvements in and relating to devices for successively exhibiting names, advertisements and the like
IPC: G09F11/06
Filed: 1936-03-10
Abstract: 470,869. Displaying. FORREST, P. W. March 10, 1936, No. 7179. [Class 3 (i)] In falling - leaf display apparatus of the type in which a leafcarrying drum is mounted for rotation on a horizontal axis in the upper part of a windowed casing, a motor driving the drum and a spring member preventing more than one leaf falling at a time, the motor is located within the drum 5 and drives through reduction gearing a crank-pin 15 engaging a disc 12 coaxial with the drum and connected to a ring 13 inside the drum by a pawl - and - ratchet or other free - wheel device. The drum may be carried by a stub shaft at one end and by rollers 9 at the opposite end. The leaves 16 fall on a sloping wall 19 which may have a rubber &c. facing 23. The leaves may be hemmed to receive rods on the drum 5 whereby the leaves may be interchanged. The spring member bearing on the leaves may rise just before the fall of a leaf to extinguish a lamp, which lights up again to illuminate a fallen leaf.
Patent GB-288425-A (GB)
Title: Improvements in and relating to surgical needles or the like
IPC: A61B17/06
Filed: 1927-03-15
Abstract: 288,425. Fletcher H. C. March 15 1927. Sewing-needles. - A surgical needle is formed by flattening the end b of a wire blank a, swaging the flattened end to form a slotted cylinder which is almost closed, as shown in Fig. 4, and then closing the lower position d to form a socket, Fig. 5. The suture is inserted into the needle so that its end enters the socket, and the slotted cylindrical part c is then closed upon the suture by pressure. The needles may be made in oppositely disposed pairs, the flattened portion b being common to each pair.
Patent GB-1368511-A (GB)
Title: Process for the isomerization of glucose to fructose
IPC: C13K11/00
Filed: 1972-02-17
Abstract: 1368511 Fructose; enzymatic-isomerization of glucose STANDARD BRANDS Inc 17 Feb 1972 7404/72 Heading C2S A portion of the glucose in a glucose containing solution is enzymatically isomerized to fructose using glucose isomerase obtained from microorganisms, prepared by destroying at least 95% of the viable organisms in a micro-organism culture containing intracellular glucose isomerose by adding a toxic agent and culturing the remaining viable organisms, the treated viable organism being characterized in producing at least 30% more glucose isomerase than untreated micro-organisms when cultured under the same conditions.
Patent GB-1256339-A (GB)
Title: Improvements in or relating to wave-guides
IPC: H01Q21/00
Filed: 1969-10-20
Abstract: 1,256,339. Microwave heating. CANADIAN PATENTS & DEVELOPMENT Ltd. 20 Oct., 1969 [21 Oct., 1968], No. 7444/71. Divided out of 1,255,690. Heading H5H. A waveguide for use in microwave heating apparatus is provided with a tapered ridge or double ridge producing a region of electric field intensification in the waveguide along which a workpiece may be fed. The ridge has minimum dimensions at the input end of the waveguide whereby the field intensification increases towards the output end to a sufficient degree to compensate for attenuation. As shown, rectangular waveguide 50 is provided with a double ridge 51, 52 having a portion 51<SP>1</SP>, 52<SP>1</SP> tapering towards the input end. A laminar workpiece (not shown), containing e.g. a glue-line to be cured, extends through a slot 43 opposite the double ridge and moves from the input to the output end of the waveguide. The input end of the waveguide curves away from the workpiece through a right-angle bend (Fig. 4, not shown).
Patent GB-667344-A (GB)
Title: Improvements in or relating to driving means for crepe rubber rolling mills
Inventor: JACOBSON BERNARD HENRI
IPC: B29B7/58
Filed: 1950-03-24
Abstract: 667,344. Crepe rubber rolling-mills. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN. March 24, 1950. No. 7502/50. Class 87(ii). The gear wheel 4 on the shaft of roller 2 meshes directly with a driving gear wheel 16 on the output shaft of a geared reduction electric motor 15, this output shaft running at a slow speed (of the order of 50 r.p.m. or less). Gear wheel 4 transmits the drive to roller 1 via gear wheel 3 on the shaft of roller 1. The wheel 16 may mesh not with 4 but with 3. Wheel 16 engages wheel 4 at or near a diameter perpendicular to the plane containing the axes of rollers 1, 2. Two known methods of driving the rolls 1, 2 are described, in each of which the rods are geared together by wheels 3, 4, and in one of these the relative size of the gears 3, 4 is such that the speed of the (front) roller 1 is greater than that of (rear) roller 2.
Patent GB-1453483-A (GB)
Title: Cryogenic vessel insulation
IPC: B29C65/00
Filed: 1974-02-19
Abstract: 1453483 Thermal insulation of cryogenic tanks DOW CHEMICAL CO 19 Feb 1974 [23 Feb 1973] 7520/74 Addition to 1401031 Heading F4P In a cryogenic vessel 13 having thermal insulation over at least a portion of its surface, the insulation comprises strips 17 of closed cell synthetic resinous foam each strip being joined to adjacent strips. The foam in the regions intended to be adjacent the region of lowest temperature is a flexibilized foam as defined in the Specification. Spherical, rectangular and cylindrical vessels are described.
Patent GB-598698-A (GB)
Title: Improvements in or relating to gas turbine power plants, particularly for aircraft
IPC: F02C6/02
Filed: 1946-03-12
Abstract: 598,698. Gas turbines. BRISTOL AEROPLANE CO., Ltd., OWNER, F. M., MANSELL, S.W., and MARCHANT, F. C. I. March 12, 1946, No. 7689. [Class 110 (iii)] [Also in Group XXXIII] A gas-turbine power plant comprises a number of power units each having a compressor turbine and a power turbine, the power turbines of the units being mechanically coupled together. The invention is described as applied to an aeroplane, the power plant and transmission gearing lying wholly within the wing, but it may be applied to boats, land vehicles, such as locomotives, or stationary installations. Each unit comprises turbines 12, 13, the former driving a compressor 8 through a shaft 14 and the latter being connected by a shaft 15 to the gearbox 16. The compressor 8 delivers air to the combustion chambers 9, and the combustion gases, after traversing the turbines 12, 13 in succession, are exhausted through a jet pipe 11. Each shaft 15 drives the propeller shaft 17 through pinion 19, gearwheel 21 and two idler gears 20. The two gears 20 are mounted with their axes respectively above and below the plane containing the axes of the pinion and gear wheel. The pinion 19 is connected to the shaft 15 by means of a clutch comprising an internally toothed member 23 fast with the pinion and an externally toothed member 24 splined to the shaft and axially movable by a hydraulic ram 27. The clutch may be controlled either manually or automatically and, preferably, incorporates a synchronizing device or a freewheel mechanism, or both, to ensure that engagement of the clutch takes place only when the shaft 15 and pinion 19 are rotating at the same speed. The intake 30 to each compressor 8 may be provided with shutters or the like which are closed when the corresponding power unit is inoperative. The Provisional Specification refers to Specification 598,699.
Patent GB-1455102-A (GB)
Title: Connector arrangement for optical fibre cables
IPC: G02B6/38
Filed: 1975-02-24
Abstract: 1455102 Light guides SIEMENS AG 24 Feb 1975 [25 Feb 1974] 7701/75 Addition to 1454970 Heading G2J The connector arrangement of Specification 1454970 is modified by the provision of a guide element 3 to protect the free end of each fibre 7 and to facilitate its insertion in the coupling element 8, the guide element 3 being displaceable from a position (broken lines) in which the ends of the fibres 7 are substantially flush with its outer face to a position (full lines) in which the ends project. The guide element 3 is biased by spring 5 towards the former position.
Patent GB-176672-A (GB)
Title: Electrical and magnetic polarity and sex indicator
IPC: G01R19/14
Filed: 1921-03-29
Abstract: 176,672. Young, R. D. March 29, 1921. Anthropometrical appliances. -The sex of an egg or other living body may be determined by a core a of magnetic material having a coil of insulated conducting material b wound about it and suspended by one end so that it may be free to oscillate or move in a circle about the axis of support.
Patent GB-1133551-A (GB)
Title: Polymer compositions
Inventor: MARSHALL BRIAN ARTHUR
IPC: C08K5/3475
Filed: 1967-02-17
Abstract: 1,133,551. Stabilizing methylpentene polymers. IMPERIAL CHEMICAL INDUSTRIES Ltd. 25 Jan., 1968 [17 Feb., 1967], No. 7741/67. Heading C3P. Polymers of 4-methylpentene-1 are stabilized against degradation in the presence of copper by incorporating a minor proportion by weight of benzotriazole. The compositions may also comprise conventional stabilizers, e.g. phenols, dialkyl thiodipropionates, alkyl mercaptans and sulphides, amines, thiophosphites, phosphonates, hydroxybenzophenones and 9,10-dihydroanthracene; and fillers, dyes and pigments. Many suitable conventional stabilizers are listed, and examples describe compositions of 4-methylpentene-1 copolymers and benzotriazole, optionally with conventional additives selected from pentaerythrityl tetra-#-(3,5-di-t.-butyl-4- hydroxyphenyl)-propionate, dilauryl thiodipropionate, 9,10-dihydroanthracene, di-n-octadecyl (3,5 - di - t. - butyl - 4 - hydroxybenzyl) - phosphonate, 1,1,3 - tris - (2 - methyl - 5 - t. - butyl- 5-hydroxyphenyl)-butane, octadecyl #-(3,5-dit. - butyl - 4 - hydroxyphenyl) - propionate, 1,3,5- trimethyl - 2,4,6 - tris - (3<SP>1</SP>,5<SP>1</SP> - di - t. - butyl- 4<SP>1</SP> - hydroxybenzyl) - benzene, 4,4<SP>1</SP> - thiobis - (3- methyl - 6 - t. - butylphenol), N,N<SP>1</SP> - di - #- naphthyl - p - phenylene diamine, di - n - octadecyl sulphide, di-t.-dodecyl sulphide, n-octadecyl mercaptan and titanium dioxide.
Patent GB-610564-A (GB)
Title: Improvements in and relating to glass fibers
IPC: C03B37/02
Filed: 1946-03-12
Abstract: 610,564. Glass fibres. GLASS FIBERS, Inc. March 12, 1946, No. 7748. Convention date, Nov. 13, 1945. [Class 56] Relates to the production of glass fibres by feeding stock into a melting chamber and extruding and drawing the molten material through apertures therein. The stock may be in the form of rod, Fig. 1, or marbles, Fig. 5. A differential pressure is maintained between the inside and outside of the melting chamber and the speed at which the fibres are drawn and the speed of [extrusion are such that globule-like accumulations form and are maintained at the discharge end of the apertures, the fibres being drawn from these accumulations. In Fig. 1 the differential pressure is effected by introducing compressed air into the melting chamber through a passage 28; in another form (not shown), suction may be applied outside adjacent the outlets of the extrusion nozzles, whilst in Fig. 5 the pressure is derived from centrifugal force, the melting chamber being mounted in an inclined position on a rotating platform 152. The melting may be effected by surrounding the chamber with a high-frequency coil 18 and the amount of heat supplied may be controlled automatically in accordance with the temperature existing in the chamber, contacts associated with relays controlling the grid circuits of valves in a high-frequency oscillator system being provided in a temperature sensitive device 50 for this purpose. A predetermined minimum quantity of molten material is maintained in the chamber; in the form shown in Fig. 1, when the level falls below the prescribed minimum a circuit is broken at contact 48 to energize a relay circuit to start the motor 41 driving the gearing &c. for advancing the stock rod 22; when the liquid level rises and remakes circuit at 48, the relay circuit switches out the motor. In the form shown in Fig. 5, a solenoid 162 is similarly energized or de-energized,respectively, to move a slide 164 into the path of the descending marbles 158 or to permit a spring 163 to retract the slide out of the path.
Patent GB-1222481-A (GB)
Title: Improvements in or relating to road vehicle lighting equipment
IPC: B60Q1/08
Filed: 1969-02-13
Abstract: 1,222,481. Operating Bowden cables. SOC. ANON. AUTOMOBILES CITROEN. 13 Feb., 1969 [16 Feb., 1968], No. 7750/69. Heading B7E. [Also in Divisions F2 and F4] A Bowden cable 57 forming part of the control mechanism of a pivotally mounted headlamp on a motor vehicle (see Division F4) is operated by relative movement between a bifurcated member 59 and an arm 61 pivoted to the member at 14, the arrangement being such that the cable moves in the same direction relative to its sheath 58 irrespective of whether the relative movement between the member and the arm is clockwise or anti-clockwise. The cable carries a first stop 62 which bears against the arm and a second stop 63 which bears against one side of the member whilst the sheath passes freely through the other side of the member and is secured to the arm, a stop 60 on the sheath being adapted to engage the other side of the member. When the arm moves clockwise relative to the member it draws the cable out of the sheath by virtue of the stops 60 and 62, whereas when the movement is anti-clockwise the cable is again drawn out of the sheath by virtue of the stop 63.
Patent GB-476930-A (GB)
Title: A new aluminium alloy
IPC: C22C21/00
Filed: 1936-03-16
Abstract: Aluminium alloys particularly suitable for wrought parts of internal-combustion engines, aircraft, and automobiles, contain 1,1-5,5 per cent of copper, 2-6,8 per cent of zinc, 1,6-5 per cent of magnesium, 0,02-3 per cent of iron, and 0,05-1 per cent of silicon, with or without up to 3,5 per cent of nickel, up to 2 per cent of manganese, up to 3 per cent of antimony, up to 2,5 per cent of cobalt, and up to 1 per cent of titanium, the total content of these five metals being not over 4 per cent, and the total of copper and zinc being not over 9,75 per cent.  Up to a total of 2 per cent of any of the metals, chromium, silver, molybdenum, beryllium, tin, lead, tungsten, vanadium, boron, zirconium, cerium, thorium, and lithium, and up to a total of 0,5 per cent of impurities such as cadmium, calcium, bismuth, arsenic, sodium, and potassium, may also be present.  Heat-treatment may consist in heating to 410-480 DEG  C. for 30 minutes, quenching in water, heating at 120-180 DEG  C. for 6-24 hours, and cooling in air or quenching in water. Specifications 350,446 and 425,128 are referred to.  According to the Provisional Specification, the ranges of some of the elements are wider than those given above.
Patent GB-315389-A (GB)
Title: Improvements relating to glass blowing machines
IPC: C03B9/24
Filed: 1929-03-11
Abstract: 315,389. Bullman Machine Co., Ltd., (Assignees of Hillmann, H.). July 13, 1928, [Convention date]. Gathering ; cutting-off excess metal.-Relates to glassblowing machines of the type which gather charges of glass into the parison moulds by suction, each parison mould being associated with a shearing-blade that cuts off the surplus glass at the intake of the mould. According to the invention, after the glass has been sheared off, the lower end of the glass blank, which protrudes from the mould, is repeatedly upset, or expanded laterally, before the blank is transferred to the finishing mould. The upsetting of the glass is effected by a flat tool, preferably the shearing- blade 4, which is given a reciprocating movement in the direction of the length of the blank. The blade pats the bottom of the blank, or presses it upwards, causing it to bulge out along its edge. The protruding glass 23 reheats by conduction from the interior, and the shear scar does not appear on the bottom of the finished bottle.
Patent GB-1087024-A (GB)
Title: Diazotype copying material
IPC: G03C/
Filed: 1966-02-23
Abstract: The invention comprises diazo compounds of the formula <FORM:1087024/C2/1> wherein R1 and R2, which may be the same or different, represent unsubstituted or substituted alkyl, aralkyl or cycloalkyl groups or are linked to form with the N atom a heterocyclic ring, and X represents an anion.  They may be obtained by reacting 2-chloro-5-nitro-1-trifluoromethylbenzene with a secondary amine of the formula NHR1R2 and then reducing and diazotizing the resulting 2-tert-amino-5-nitro-1-trifluoromethylbenzene. Specified secondary amines are dimethyl-, diethyl-, diisopropyl-, and di - n - butyl - amine, hydroxyethylpropylamine, methylbenzylamine, hydroxyethyl-benzylamine, methylcyclohexylamine, pyrrolidine, morpholine, thiomorpholine, piperidine, N-alkylpiperazine and N-acylpiperazine.  The compounds may be used in diazotype copying materials (see Division G2).
Patent GB-895247-A (GB)
Title: Improvements relating to magnetic storage devices
Inventor: HOFFMAN GEORGE RICHARD
IPC: H03K19/16
Filed: 1958-03-12
Abstract: 895,247. Coating by vapour deposition. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 12, 1959 [March 12, 1958], No. 7986/58. Class 82(2). [Also in Groups XXXV and XXXIX] A thin film 1 of magnetic material (nickel-iron alloy) forming part of a magnetic storage device is deposited by evaporation on a glass tube 1 or on a conductor X, an electric current being passed through the conductor during deposition. The tube is rotated and the whole substrate raised to 300C. The films may be deposited simultaneously on a number of parallel glass tubes driving one another through coupling wheels of silicon rubber, and arranged in an arc around a central core, the controlling magnetic field being radial to the core. Conductive films may be deposited on or beneath the magnetic films. Reference has been directed by the Comptroller to Specification 859,705.
Patent GB-747057-A (GB)
Title: Improved aluminium base bearing alloy
IPC: C22C21/02
Filed: 1954-03-19
Abstract: An aluminium-base alloy suitable for use as bearing material has the composition Si 0,5-9 per cent, Cd 0,2-5 per cent, Cr 0,1-0,5 per cent, Al and impurities the balance.  The impurities include Fe, which may be present up to 0,5 per cent of the alloy.  In may be a constituent of the alloy in amount from 0,03-0,5 per cent.  Al, Si and Cr may be fused at a temperature of about 1200 DEG F., the Si and Cr being used as their alloys with Al; the melt is removed from the furnace.  In and Cd are added simultaneously or successively and the melt is stirred and cast at a temperature which should not exceed 1400 DEG F.  The cast alloy may be heat treated between 900 DEG F. and 1050 DEG F. for eight to fifteen hours and then quenched in water.  In this condition it can readily be rolled to strip. Bearings made of the alloy may have a thin overlay of Pb or a Pb-base alloy.
Patent GB-729523-A (GB)
Title: Foams obtained from alkyd resins and isocyanates
IPC: C08J9/00
Filed: 1953-03-24
Abstract: A foam containing a multitude of small bubbles but substantially free from large bubbles is made by reacting an alkyd resin with a polyisocyanate in presence of a surface-active agent preferably present in an amount of 0.1 to 5 per cent by weight of the alkyd. The foamable compositions may be moulded (see Group V) and the products obtained used in the construction of radar canopies, guided missile components and aircraft parts.  The Specification contains a list of polyhydric alcohols and polycarboxylic acids to be condensed to produce the alkyd and a list of polyisocyanates.  The alkyd preferably has an acid number of 35-45.  Specified surface active agents are potassium oleate, zinc stearate, polyoxyethylene sorbitan monopalmitate, sorbitan trioleate, sorbitan monolaurate, sorbitan monostearate, polyoxyethylene sorbitol laurate, lecithin, lanolin, diamyl sodium sulphosuccinate and dioctyl sodium sulphosuccinate.  In an example a mixture of (1) 250 grams of an alkyd resin obtained from glycerol, adipic acid and phthalic anhydride and having an acid number 42-46 and hydroxyl number 465-490; (2) 210 grams tolylene diisocyanate; and (3) 2.5 grams of a surface-active agent was foamed and cured between laminated glass fabric skins by heating for one hour at 140-150 DEG  F. and for two hours at 275 DEG  F.  Reference has been directed by the Comptroller to Specifications 547,672 and 553,733.ALSO:A foamable mixture of an alkyd resin and an organic polyisocyanate containing a surface active agent (see Group IV (a)) is moulded to produce a foamed panel or a foamed radome.  In examples (1) Test panels were prepared by placing a laminated glass fabric skin on an aluminium plate, placing a frame having the same dimensions as the plate and a 1/2 inch by 1/2 inch cross-section on the skin and pouring the foamable mixture into the confining space. A second glass fabric skin was placed on top and the mould closed by placing an aluminium plate on top of the second skin.  The assembly was clamped together with "C" clamps and foamed by heating for one hour at 140-150 DEG  F. and two hours at 275 DEG F.  During the heating the rising foam seals the air escape, thus creating a restraint tending to repress further expansion of bubbles in the foam.  The glass fabric skin may be replaced by wood veneer, aluminium foil or steel sheet.  (2) A radome was made by pouring the mixture into the void between two resin laminated glass fabric skins which are confined between a male and a female mould and foaming the composition by heat.  Reference has been directed by the Comptroller to Specifications 547,672 and 553,733, [both in Group IV].